Trying to create a vector using a structure definition as the basis in VC++ 2013

2013 2013 2013


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I'm using a header file to define the structure:



#ifndef EINSTEIN_H

#define EINSTEIN_H



#include

#include







struct SizeAll{

double year;

double R;

SizeAll() { year = 0; R = 0; }

};







int write_to_file(int count, struct SizeAll *data, char const



*fileName)

{

FILE* fp;

fp = fopen(fileName, "w");

if (fp == NULL) return -1;

while (count-- > 0) {

fprintf(fp, "%d,%d\n", data->year, data->R);

//check for errors writing to file

if (ferror(fp)) return -1;

}

fclose(fp);

return 0;

}

#endif





I've loaded the following in the "main.cpp" equivalent. (Not called "main.cpp", but serves the same purpose.)

#include "stdafx.h"

#include

#include

#include "Einstein.h"

#include

#include "Form1.h"



The code that actually seeks to generate the vector using the structure definition follows:





int counter,year,retval,count;

vector Universe;

Universe.resize(5);

vector *heretis;

char const NameFile[]="D:\\Friedout.csv";



heretis=&Universe;

Universe.R = double(366);

Universe.year = double(188);

for ( counter = 15000 ; counter > 99 ; counter-- )

{

Universe.year =double(counter);

Universe.R = double(counter*2);

if (counter==100||counter ==2500||counter==5000||counter==7500||counter==10000||counter==12500||counter==15000)

{

retval=write_to_file(1, heretis, NameFile);

if (retval ==-1)

{

break;

}

}

}





This creates quite a mess. It seems that somehow the "vector" declaration isn't working as the referenced web link seems to suggest that it should. I presume that, as usual, clearing one real error will eliminate the cascade of errors the first real error produces. Can anyone clear this up for me? Why won't VC++ accept the "vector" identifier? Thank you.



The error messages that follow the build attempt are:



Friedman.cpp

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(22): warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.

C:\Program Files\Microsoft Visual Studio 10.0\VC\include\stdio.h(234) : see declaration of 'fopen'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(80): warning C4067: unexpected tokens following preprocessor directive - expected a newline

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2065: 'vector' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2275: 'SizeAll' : illegal use of this type as an expression

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(9) : see declaration of 'SizeAll'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(83): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(83): error C2228: left of '.resize' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2065: 'vector' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2275: 'SizeAll' : illegal use of this type as an expression

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(9) : see declaration of 'SizeAll'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2065: 'heretis' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(87): error C2065: 'heretis' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(87): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(88): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(88): error C2228: left of '.R' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(89): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(89): error C2228: left of '.year' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(92): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(92): error C2228: left of '.year' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(93): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(93): error C2228: left of '.R' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(96): error C2065: 'heretis' : undeclared identifier

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========</div>


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[Vous devez être inscrit et connecté pour voir ce lien]



I'm using a header file to define the structure:



#ifndef EINSTEIN_H

#define EINSTEIN_H



#include

#include







struct SizeAll{

double year;

double R;

SizeAll() { year = 0; R = 0; }

};







int write_to_file(int count, struct SizeAll *data, char const



*fileName)

{

FILE* fp;

fp = fopen(fileName, "w");

if (fp == NULL) return -1;

while (count-- > 0) {

fprintf(fp, "%d,%d\n", data->year, data->R);

//check for errors writing to file

if (ferror(fp)) return -1;

}

fclose(fp);

return 0;

}

#endif





I've loaded the following in the "main.cpp" equivalent. (Not called "main.cpp", but serves the same purpose.)

#include "stdafx.h"

#include

#include

#include "Einstein.h"

#include

#include "Form1.h"



The code that actually seeks to generate the vector using the structure definition follows:





int counter,year,retval,count;

vector Universe;

Universe.resize(5);

vector *heretis;

char const NameFile[]="D:\\Friedout.csv";



heretis=&Universe;

Universe.R = double(366);

Universe.year = double(188);

for ( counter = 15000 ; counter > 99 ; counter-- )

{

Universe.year =double(counter);

Universe.R = double(counter*2);

if (counter==100||counter ==2500||counter==5000||counter==7500||counter==10000||counter==12500||counter==15000)

{

retval=write_to_file(1, heretis, NameFile);

if (retval ==-1)

{

break;

}

}

}





This creates quite a mess. It seems that somehow the "vector" declaration isn't working as the referenced web link seems to suggest that it should. I presume that, as usual, clearing one real error will eliminate the cascade of errors the first real error produces. Can anyone clear this up for me? Why won't VC++ accept the "vector" identifier? Thank you.



The error messages that follow the build attempt are:



Friedman.cpp

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(22): warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.

C:\Program Files\Microsoft Visual Studio 10.0\VC\include\stdio.h(234) : see declaration of 'fopen'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(80): warning C4067: unexpected tokens following preprocessor directive - expected a newline

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2065: 'vector' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2275: 'SizeAll' : illegal use of this type as an expression

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(9) : see declaration of 'SizeAll'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(82): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(83): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(83): error C2228: left of '.resize' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2065: 'vector' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2275: 'SizeAll' : illegal use of this type as an expression

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Einstein.h(9) : see declaration of 'SizeAll'

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(84): error C2065: 'heretis' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(87): error C2065: 'heretis' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(87): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(88): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(88): error C2228: left of '.R' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(89): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(89): error C2228: left of '.year' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(92): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(92): error C2228: left of '.year' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(93): error C2065: 'Universe' : undeclared identifier

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(93): error C2228: left of '.R' must have class/struct/union

type is ''unknown-type''

d:\documents and settings\xx\my documents\visual studio 2010\projects\friedman\friedman\Form1.h(96): error C2065: 'heretis' : undeclared identifier

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========</div>


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